The roots take in the water and then it travels through the stem of the plant.
Answer:
b) 7 degrees
Explanation:
The brain scanning techniques like CT and MRI have the reference lines like IOML or Infraorbitomeatal line and OML or Orbitomeatal line. These lines act as the standard reference during the CT techniques based on X-Rays.
The OML line passes through the centre of the external auditory meatus and the canthus of the eye whereas the line drawn between the external acoustic meatus to the infraorbital margin. These lines are used to adjust the positions of the cranium or the skull during the Radio-imaging process. The difference formed between these lines approximately lies between 7-8 degrees.
Thus, 7 degrees is the correct answer.
Genetic variation can be caused by mutation. Hope this helped. ;)
Answer:
The initial step in the formation of an aminoacyl-tRNA is activation of the amino acid by reaction with ATP
Explanation:
In protein synthesis, the first step involves the formation of an aminoacyl-tRNA. This reaction is catalyzed by the the Mg²⁺-dependent enzymes known as aminoacyl t-RNA synthetases and occurs in two steps.
The first step of the reaction of the formation of an aminoacyl-tRNA is the activation of the amino acid by the attachment of an AMP molecule formed from the hydrolysis of ATP to AMP and pyrophosphate. The aminoacyl adenylate intermediate is bound to the enzyme in this initial step. Subsequently, in the second step of the activation of the amino acid, the aminoacyl adenylate intermediate is then transferred to its specific tRNA. The pyrophosphate formed in the first step is hydrolyzed to 2 phosphate molecules by a pyrophosphatase.
The overall reaction step is illustrated below:
Amino acid + tRNA + ATP -----> aminoacyl-tRNA +AMP + 2Pi